... this Dx. If the docs do not know the cause, they don't know the cure either. Now you get to be your own advocate. You need to ask for any non invasive testing they haven't already done. First up, parasite stool examinations. Many false negatives here, but sometimes they find something. Your ...

I know this might not be that useful now but its a type of habbitat that only contains one species e.g. when an invasive species (like himalayan balsam) outcompetes all species in an area leaving itself as the only species. Just in case you're still interested